Bromodichloromethane
Raytown Water Company
Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | 0.665 ppb | 16 | 14 | ND - 1.05 ppb |
| 2015 | 0.931 ppb | 10 | 10 | 0.550 ppb - 1.59 ppb |
| 2016 | 0.885 ppb | 8 | 8 | 0.570 ppb - 1.39 ppb |
| 2017 | 1.00 ppb | 8 | 8 | 0.720 ppb - 1.36 ppb |
| 2018 | 0.929 ppb | 8 | 8 | 0.650 ppb - 1.59 ppb |
| 2019 | 1.23 ppb | 8 | 8 | 0.800 ppb - 1.68 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.06 ppb
The EWG Health Guideline of 0.06 ppb for bromodichloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-13 | AC16670 | ND |
| 2014-01-13 | AC16669 | 0.570 ppb |
| 2014-01-13 | AC16672 | ND |
| 2014-01-13 | AC16671 | 0.500 ppb |
| 2014-04-07 | AC21576 | 0.880 ppb |
| 2014-04-07 | AC21577 | 0.730 ppb |
| 2014-04-07 | AC21578 | 0.780 ppb |
| 2014-04-07 | AC21579 | 0.660 ppb |
| 2014-07-28 | AC30593 | 0.970 ppb |
| 2014-07-28 | AC30594 | 1.05 ppb |
| 2014-07-28 | AC30595 | 1.000 ppb |
| 2014-07-28 | AC30596 | 1.000 ppb |
| 2014-10-21 | AC37635 | 0.600 ppb |
| 2014-10-21 | AC37636 | 0.660 ppb |
| 2014-10-21 | AC37637 | 0.570 ppb |
| 2014-10-21 | AC37638 | 0.670 ppb |
| 2015-01-26 | AC40359 | 0.570 ppb |
| 2015-01-26 | AC40362 | 0.570 ppb |
| 2015-01-26 | AC40361 | 0.580 ppb |
| 2015-01-26 | AC40360 | 0.550 ppb |
| 2015-04-27 | AC45034 | 1.000 ppb |
| 2015-04-27 | AC45033 | 0.880 ppb |
| 2015-07-20 | AC54259 | 1.59 ppb |
| 2015-07-20 | AC54258 | 1.52 ppb |
| 2015-10-16 | AC61195 | 1.04 ppb |
| 2015-10-16 | AC61194 | 1.01 ppb |
| 2016-01-11 | AC65000 | 0.620 ppb |
| 2016-01-11 | AC65001 | 0.570 ppb |
| 2016-04-13 | AC69359 | 0.830 ppb |
| 2016-04-13 | AC69360 | 0.840 ppb |
| 2016-07-11 | AC79682 | 1.35 ppb |
| 2016-07-11 | AC79681 | 1.39 ppb |
| 2016-10-17 | AC86268 | 0.680 ppb |
| 2016-10-17 | AC86267 | 0.800 ppb |
| 2017-01-13 | AC89077 | 1.09 ppb |
| 2017-01-13 | AC89078 | 1.04 ppb |
| 2017-04-06 | AC94440 | 0.940 ppb |
| 2017-04-06 | AC94439 | 0.960 ppb |
| 2017-07-11 | AD01371 | 1.18 ppb |
| 2017-07-11 | AD01370 | 1.36 ppb |
| 2017-10-16 | AD07876 | 0.720 ppb |
| 2017-10-16 | AD07875 | 0.720 ppb |
| 2018-01-21 | AD12811 | 0.740 ppb |
| 2018-01-21 | AD12810 | 0.650 ppb |
| 2018-04-12 | AD17988 | 0.800 ppb |
| 2018-04-12 | AD17989 | 0.770 ppb |
| 2018-07-10 | AD29146 | 1.29 ppb |
| 2018-07-10 | AD29147 | 1.59 ppb |
| 2018-10-17 | AD34394 | 0.770 ppb |
| 2018-10-17 | AD34395 | 0.820 ppb |
| 2019-01-15 | AD37703 | 0.800 ppb |
| 2019-01-15 | AD37704 | 0.880 ppb |
| 2019-04-08 | AD46123 | 1.27 ppb |
| 2019-04-08 | AD46124 | 1.08 ppb |
| 2019-07-09 | AD51765 | 1.39 ppb |
| 2019-07-09 | AD51764 | 1.29 ppb |
| 2019-10-14 | AD56708 | 1.68 ppb |
| 2019-10-14 | AD56709 | 1.48 ppb |